WO2017008947A1 - Système d'accumulateur avec une technique de soudure améliorée pour un élément de liaison de cellules - Google Patents

Système d'accumulateur avec une technique de soudure améliorée pour un élément de liaison de cellules Download PDF

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Publication number
WO2017008947A1
WO2017008947A1 PCT/EP2016/062463 EP2016062463W WO2017008947A1 WO 2017008947 A1 WO2017008947 A1 WO 2017008947A1 EP 2016062463 W EP2016062463 W EP 2016062463W WO 2017008947 A1 WO2017008947 A1 WO 2017008947A1
Authority
WO
WIPO (PCT)
Prior art keywords
weld
accumulator
welds
cell
spaced
Prior art date
Application number
PCT/EP2016/062463
Other languages
German (de)
English (en)
Inventor
Rüdiger Daub
Christoph Born
Daniel Scherer
Philip KOTTER
Bernhard NITSCHKE
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Priority to CN201680021234.1A priority Critical patent/CN107534119B/zh
Publication of WO2017008947A1 publication Critical patent/WO2017008947A1/fr
Priority to US15/858,291 priority patent/US11806813B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • B23K31/025—Connecting cutting edges or the like to tools; Attaching reinforcements to workpieces, e.g. wear-resisting zones to tableware
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1265—Non-butt welded joints, e.g. overlap-joints, T-joints or spot welds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • B23K2101/38—Conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to an accumulator assembly having an improved welding technique for attaching a cell connector element to a
  • accumulator arrangements are used in which a plurality of accumulator cells, for example prismatic accumulator cells, are connected in series to form a module, usually connected serially in series.
  • the modules can be configured in series or parallel during operation of the motor vehicle and form a traction accumulator.
  • the traction battery feeds an electric machine for driving a motor vehicle.
  • Cell connector elements are designed to connect opposing poles of two adjacent cells.
  • the cell connectors come with two
  • Connection elements of each battery cell are electrically connected to an electrode. It is known that the cell connector element can be welded to the connection element, for example by means of circular welds. It is also known to screw the cell connector elements with the connecting elements or to bind to them.
  • the laser welding of a cell connector element to a connection element has the disadvantage that a high energy input takes place in the form of heat in the cell connector and the connection element. This can be arranged nearby
  • connection elements and cell connector elements which requires more space.
  • laser beam welding requires considerable investment in system technology, which is justified only if the connection process is considerably faster compared to alternative methods.
  • DE 10 2010 020 065 A1 discloses an energy storage module comprising a plurality of prismatic cells and a cell contacting unit comprising a carrier on which a plurality of cell connectors are arranged, via which a respective terminal of the first polarity of a memory cell to a respective terminal of a second polarity of an adjacent memory cell electrically connected.
  • DE 10 2010 046 529 A1 discloses a frame system for receiving at least one battery cell.
  • US 2010/01671 15 A1 discloses a battery system with a battery block having a plurality of battery cells, which are arranged by means of insulating separating elements to each other.
  • connection of two electrical poles of individual cells of an electrochemical energy store comprising a bundle of at least two conductor elements bridging the gap between each other to be connected to each other.
  • DE 10 201 1075 853 A1 discloses a cell connector having at least two compensation sections which each extend along a connecting direction from the first contact area to the second contact area and are separated from one another transversely to the connecting direction.
  • DE 25 16 530 A1 discloses the attachment of a connector element to a battery by means of a plurality of welding points.
  • the invention has as its object to provide an accumulator assembly with an improved welded joint.
  • An accumulator arrangement comprises a first accumulator cell with at least one electrical connection element, a second accumulator cell with at least one electrical connection element, a cell connector element which electrically connects an electrical connection element of the first accumulator cell and an electrical connection element of the second accumulator cell to one another and the at least one of the electrical connection elements one of the battery cells is welded by means of a plurality of welding locations.
  • the number and location of the weld locations are chosen based on an expected current density such that more weld locations are located at locations with a higher expected current density and none at locations with a lower expected current density or less welding locations are arranged.
  • the electrical connection element removes charge from the battery cell and / or leads charge the
  • the first accumulator cell can have an opposite to the electrical connection element to which the cell connector element, the second accumulator cell opposite polarity.
  • a series connection of battery cells can be achieved, as is desirable, for example, in traction batteries.
  • location with a lower expected current density also includes that no current flows at that location. At locations with a higher expected current density, the expected current density is higher than in locations with a lower expected current density.
  • the weld locations can form one or more weld surfaces.
  • the inventors propose to minimize the length of the weld between the cell connector element and the terminal element with constant contact resistance. This is achieved when the geometry of the weld and / or
  • connection elements which have as a minimum requirement a connection surface of about 40 mm 2 .
  • the inventors propose continuous and / or segmented welding seams or spot welds, which are considerably smaller in terms of area than the welding circuits used in the prior art. For example, the area of the weld and / or welds can be reduced by about half, without the contact resistance of one
  • a weld location can be a single weld point. Multiple weld locations can form a weld or a weld surface. This can be the case if the places are next to each other.
  • the welding sites can be continuous
  • each segment of the interrupted weld or welding surface comprises a plurality of juxtaposed or adjacent welds.
  • the weld locations may include individual welds, a broken weld, and / or a continuous weld.
  • the weld locations may be in the form of a continuous pitch circle consisting of a weld, an interrupted pitch circle consisting of a plurality of spaced apart ones
  • Welds or spaced welds a continuous Semicircle consisting of a weld, an interrupted semicircle consisting of a plurality of spaced welds or spaced welds, two contacting continuous straight lines consisting of a weld, two contacting discontinuous straight lines consisting of a plurality of spaced welds or spaced apart
  • Weld points two contacting continuous straight lines consisting of a weld arranged at right angles to each other, two contacting discontinuous straight lines consisting of a weld arranged at right angles to each other and / or a broken straight line consisting of a plurality of spaced welds or spaced apart
  • a continuous straight line, a continuous pitch circle, and a continuous half circle may have a plurality of juxtaposed contacting weld locations or a line-shaped weld.
  • a broken pitch, a broken semicircle and a broken straight line may have a plurality of segments where the
  • Touch weld locations or form a weld can be generated for example by laser welding.
  • a line formed of welding locations and a semicircle formed of welding locations has a width corresponding to the width of the welding locations according to the welding technology used.
  • the first accumulator cell and the second accumulator cell may have an electrode coupled to the connection element which removes charge from the respective accumulator cell.
  • the electrode may have a round cross-section.
  • the electrode may extend from the connection element into the accumulator cell.
  • the continuous pitch circle can be arranged around the electrode.
  • interrupted pitch circle can be arranged around the electrode.
  • the broken straight line may be arranged in an edge region of the connecting element, which is directed in the direction of the other accumulator cell.
  • the cell connector element may have an open area extending between the electrode of the first battery cell and the electrode of the second battery cell
  • the electrode may not be covered by the cell connector element, i. H. the open area extends over the electrode.
  • the open area increases the elasticity of the cell connector to accommodate manufacturing tolerances and size changes of the battery cells during operation.
  • Weld points that are touching continuous straight lines of a weld, the touching interrupted straight lines from a A plurality of spaced welds or spaced welds, the contacting continuous straight lines of a weld arranged at right angles to each other, the contacting discontinuous straight lines which are perpendicular to each other, may be adjacent the open region and the electrode toward the other of the other accumulator cells be arranged offset.
  • the aforementioned weld locations may be on both sides adjacent to the open area and the electrode and toward each other
  • Akkumulatorzelle be arranged offset.
  • the cell connector element may be in the area between the electrical and the electrical
  • Connection element of the second accumulator cell have a curvature.
  • the camber also increases the elasticity of the cell connector to accommodate manufacturing tolerances and size changes of the battery cells during operation.
  • the highest line of the curvature can be arranged perpendicular to the open area.
  • the invention makes it possible to reduce the area of the seam by approximately 50%. As a result, the process time during the production of the invention
  • Plastic components reduced, which creates a greater degree of design freedom in the development of new accumulator modules.
  • Figure 1 is a perspective view of an inventive
  • Figure 2 shows a schematic section through a connecting element and two electrical connection elements
  • Figure 3 shows a second embodiment of the invention with two different types of welds;
  • Figure 4 shows a third embodiment with a broken straight weld;
  • Figure 5 shows a fourth embodiment with several continuous straight
  • Figure 6 shows a fifth embodiment of the invention in which the welds are in the form of pitch circles;
  • Figure 7 shows a sixth embodiment in which the welds have a shape of broken pitch circles;
  • Figure 8 shows a seventh embodiment in which the welds are in the form of continuous straight lines arranged at right angles to each other;
  • Figure 9 shows an eighth embodiment with broken straight lines arranged at right angles to each other;
  • FIG. 10 shows a plan view of an accumulator arrangement.
  • FIG. 1 shows a perspective view of connection elements 104 and a connector element 105
  • FIG. 2 shows a section through the connector element 105 and the connection elements 04, 106.
  • a plurality of battery cells 101 are arranged side by side.
  • Accumulator cell 101 comprises a first connection element 104 and a second connection element 106, in each of which an electrode 108 with a round
  • Cross section extends.
  • the electrode also extends into the interior of the
  • the first connection element 104 of a first accumulator cell 101 is connected by means of a cell connector 05 to the second connection element 106 of a second accumulator cell 101.
  • the first connection element 104 of a first accumulator cell 101 is connected by means of a cell connector 05 to the second connection element 106 of a second accumulator cell 101.
  • Cell connector elements 105 attached by a plurality of welds, which form a broken pitch circle 120.
  • the broken pitch circle is disposed adjacent to the electrode 108.
  • Welding points of the interrupted pitch circle 120 are in an area in which high current densities are to be expected. There indicates the transition from
  • Terminal member 104, 106 to the connector element 105 has a low electrical resistance.
  • the connector element 105 further has an open area extending from the electrode of one battery cell 101 to an electrode 108 of another battery cell 101 and narrower than the electrode. Further, the electrodes 101 are not covered by the free area.
  • the open area 114 serves to accommodate mechanical tolerances and size changes, for example due to temperature and state of charge.
  • the connector element 105 comprises a substantially U-shaped curvature 112, which extends substantially perpendicular to the open area 14.
  • the substantially U-shaped camber 112 also serves to accommodate mechanical tolerances and size changes due to temperature and state of charge.
  • Welding points is formed, essentially a semicircle.
  • connection elements 104, 106 are connected to the connection elements 104, 106 by means of a part-circular
  • Weld point assembly 220 connected.
  • Welding points 220 form two pitch circles on each electrode, which correspond approximately to a quarter circle. Further, the connector element 105 is fixed by means of a broken straight line 222 of welds to the connection elements 104, 106, to electrically connect the connector element 105 with the
  • Connect connecting elements 104, 106 are optionally fix the connector element 105 to the connector element 105.
  • Optional single weld points 228 serve to mechanically fix the connector element 105 to the
  • Connection elements 104, 106 are connected to Connection elements 104, 106.
  • FIG. 4 there is shown a third embodiment 300 of the present invention in which the bonding member 105 is attached by means of a broken straight line 322 of welds.
  • the broken line 322 is arranged on the edge region of the connection element 104, 106, which is directed in the direction of the other connection element.
  • Each weld point can have an edge length of about 1 mm.
  • Connection elements 104, 106 is electrically connected by means of a continuous straight line at welding locations, which form a weld 422.
  • FIGS. 6 to 9 show different possibilities for welding sites, FIG. 6 showing a fifth embodiment 500 of the invention, FIG. 7 showing a sixth embodiment 600 of the invention, FIG. 8 showing a seventh embodiment 700 of the invention and FIG an eighth
  • Embodiment 800 of the invention shows. At the fifth to ninth
  • Embodiment weld locations 530, 630, 740, 840 are generated adjacent to the electrode 108 and the open area, wherein the weld locations 530, 630, 740, 840 are offset from the center of the electrode 108 in the direction of the respective other connection element 104, 106.
  • the welding locations 530 form a part-circular continuous weld 530. The convex end of the
  • part-circular weld 530 is in the direction of each other
  • connection element 104, 106 directed.
  • the sixth embodiment according to FIG. 7 essentially corresponds to the fifth embodiment 500 according to FIG. 6, wherein in the sixth embodiment 600 the welding locations 630 are formed by an interrupted pitch circle 630 with a plurality of welding segments or spaced welding spots.
  • the weld locations 740 are formed by two touching rectangular lines 740.
  • a first line is in
  • connection elements 104, 106 Essentially arranged parallel to the edges of the connection elements 104, 106, which is directed to the respective opposite connection element 04, 106.
  • the second continuous straight weld is perpendicular to the edge of the
  • Connection element 104, 106 aligned, the opposite
  • Connection element 104, 106 is directed.
  • the connection points of the weld locations 740 formed by the two line-shaped welds 740 are directed towards the center and / or open area 114 of the connection element 05.
  • the eighth embodiment of the invention 800 according to FIG. 9 substantially corresponds to the seventh embodiment 700 according to FIG. 8, wherein the broken lines are formed by a plurality of spaced-apart segments or spaced-apart welds, each with a plurality of welds.
  • the welding locations, welds, welds and the like may be formed by laser welding, for example. Laser welding processes are currently due to the comparatively low heat input in the
  • a broken line, an interrupted pitch circle, a broken semicircle, or the like includes a plurality of spaced-apart ones
  • Each segment may have a weld point or a weld location. But it is also possible that each segment has a plurality of juxtaposed welds that form, for example, a (short) continuous weld. Each weld has an extension in length and width.
  • a welding site in the sense of this invention is consequently two-dimensional.
  • a line or pitch circle or segment is formed by a plurality of juxtaposed weld locations.
  • a continuous line, a continuous pitch circle, a continuous half circle or the like may also be be produced by a continuous welding process, whereby the adjacent welding locations are generated.
  • connection elements 104, 106 of an accumulator cell Connecting element 105 to connection elements 104, 106 of an accumulator cell by means of comparatively short welds and / or by means of a
  • connection element 104, 106 of an accumulator cell 110 when the welding locations, welding points, welds or the like are in an area in which a higher current density is expected than in other places. Due to the smaller number of welding locations, welds, welds or the like, the thermal load of the battery cell 101 can be reduced during manufacture. Furthermore, the cycle time for the welding process can be reduced, which is highly relevant for high volumes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sustainable Development (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un système accumulateur pourvu de : une première cellule d'accumulateur avec au moins un élément de branchement électrique ; une deuxième cellule d'accumulateur avec au moins un élément de branchement électrique ; un élément de liaison de cellule qui relie entre eux un élément de branchement électrique de la première cellule d'accumulateur et un élément de branchement électrique de la deuxième cellule d'accumulateur et qui est soudé au moins à un des éléments de branchement électriques d'une des cellules d'accumulateur au moyen d'une pluralité de sites de soudure. Le nombre et l'emplacement des sites de soudure sont choisis en fonction de la densité de courant attendue de sorte qu'un plus grand nombre de sites de soudure sont disposés à des emplacements ayant une densité de courant attendue plus élevée et qu'aucun ou peu de sites de soudure sont disposés en des emplacements ayant une densité de courant attendue plus faible.
PCT/EP2016/062463 2015-07-14 2016-06-02 Système d'accumulateur avec une technique de soudure améliorée pour un élément de liaison de cellules WO2017008947A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680021234.1A CN107534119B (zh) 2015-07-14 2016-06-02 具有改进的用于单元连接器元件的焊接技术的蓄电池组件
US15/858,291 US11806813B2 (en) 2015-07-14 2017-12-29 Accumulator assembly with an improved welding technique for a cell connector element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015213129.7A DE102015213129A1 (de) 2015-07-14 2015-07-14 Akkumulatoranordnung mit einer verbesserten Schweißtechnik für ein Zellverbinderelement
DE102015213129.7 2015-07-14

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/858,291 Continuation US11806813B2 (en) 2015-07-14 2017-12-29 Accumulator assembly with an improved welding technique for a cell connector element

Publications (1)

Publication Number Publication Date
WO2017008947A1 true WO2017008947A1 (fr) 2017-01-19

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ID=56112946

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/062463 WO2017008947A1 (fr) 2015-07-14 2016-06-02 Système d'accumulateur avec une technique de soudure améliorée pour un élément de liaison de cellules

Country Status (4)

Country Link
US (1) US11806813B2 (fr)
CN (1) CN107534119B (fr)
DE (1) DE102015213129A1 (fr)
WO (1) WO2017008947A1 (fr)

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CN108735935A (zh) * 2017-04-19 2018-11-02 罗伯特·博世有限公司 电池模块、电池模块的制造方法和电池
JP2018181552A (ja) * 2017-04-10 2018-11-15 トヨタ自動車株式会社 組電池
WO2019082956A1 (fr) * 2017-10-25 2019-05-02 株式会社ブルーエナジー Dispositif de stockage d'électricité

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DE102018209981A1 (de) 2018-06-20 2019-12-24 Robert Bosch Gmbh Verfahren zum Verbinden zweier Bauteile und Bauteileverbund
CN210467965U (zh) * 2019-09-23 2020-05-05 宁德时代新能源科技股份有限公司 电池模组、电池包以及车辆
DE102020118146A1 (de) 2020-07-09 2022-01-13 Bayerische Motoren Werke Aktiengesellschaft Elektrisches Verbindungselement sowie elektrischer Energiespeicher und Kraftfahrzeug mit einem solchen
DE102021201938A1 (de) * 2021-03-01 2022-09-01 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren und Vorrichtung zum Fügen zweier Bauteile
GB2623441A (en) * 2021-03-03 2024-04-17 Jaguar Land Rover Ltd Components for Batteries
US20230107681A1 (en) * 2021-10-01 2023-04-06 Atieva, Inc. Multi-axis ultrasonic wedge wire bonding
JP7488289B2 (ja) * 2022-01-17 2024-05-21 プライムプラネットエナジー＆ソリューションズ株式会社 部材の接合構造ならびに電池モジュールおよび電池パック
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US11806813B2 (en) 2023-11-07
CN107534119A (zh) 2018-01-02

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